Java Module java.prefs Package java.util.prefs Class NodeChangeEvent（JDK11）

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java.lang.Object
- java.util.EventObject
- - java.util.prefs.NodeChangeEvent

All Implemented Interfaces:

Serializable
```
public class NodeChangeEvent
extends EventObject
```
An event emitted by a Preferences node to indicate that a child of that node has been added or removed.
Note, that although NodeChangeEvent inherits Serializable interface from java.util.EventObject, it is not intended to be Serializable. Appropriate serialization methods are implemented to throw NotSerializableException.

Since:

1.4

See Also:

Preferences, NodeChangeListener, PreferenceChangeEvent

Field Summary
- Fields declared in class java.util.EventObject
  source

Constructor Summary

Constructors
Constructor	Description
`NodeChangeEvent(Preferences parent, Preferences child)`	Constructs a new `NodeChangeEvent` instance.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Preferences`	`getChild()`	Returns the node that was added or removed.
`Preferences`	`getParent()`	Returns the parent of the node that was added or removed.

Methods declared in class java.util.EventObject
getSource, toString

Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - NodeChangeEvent
```
public NodeChangeEvent(Preferences parent,
                       Preferences child)
```
    Constructs a new NodeChangeEvent instance.
    
    Parameters:
    
    parent - The parent of the node that was added or removed.
    
    child - The node that was added or removed.
- Method Detail
  - getParent
```
public Preferences getParent()
```
    Returns the parent of the node that was added or removed.
    
    Returns:
    
    The parent Preferences node whose child was added or removed
  - getChild
```
public Preferences getChild()
```
    Returns the node that was added or removed.
    
    Returns:
    
    The node that was added or removed.

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